U
ser
'
s
G
Uide
— 7
Pressure –
Enters the current local absolute
Pressure as reported by a weather meter such as
an aircraft altimeter or absolute barometer (not cor-
rected by Internet, local radio or Tv news sources).
Unitless entries assumed inHg in US mode, mbar in
Metric mode. Calculates the MSA absolute Pressure
if an Elevation has been entered. Default value is
29.92 inHg (US)/1013.207 mbar (Met).
Moisture –
Enters the current local air Moisture
content. Stores unitless and percent values as the
relative humidity and stores temperature values as
the dew point temperature. Given Moisture entry
and Air Temperature, continued presses calculate
and display Moisture as relative humidity (
rH%
),
water vapor pressure (
P-WV
), saturation water
vapor pressure (
P-saT
), and dew point temperature
(
deW
). Default value is 0% relative humidity.
Wind Speed –
Enters current local Wind Speed.
Unitless entries assumed MPH in US mode, km/h
in Metric mode. Calculates corrected ET (
eTc
) and
corrected speed (
sPdc
) given entered ET, speed,
vehicle Weight, Frontal Area, Wind Speed and
Drag Coefficient (Wind Direction is optional).
Calculations are also affected by the Air Density
Index.
elevation / Air Density index –
Enters current
local Elevation. Unitless entries assumed Feet in
US mode, Meters in Metric mode. Calculates Air
Density Index (
adi
) and Density Altitude (
d-alT
)
given Pressure, Air Temperature and Moisture.
Default Elevation is 0, Air Density Index is 100%
and Density Altitude is -0.001 feet (effectively 0
feet).
(cont'd)
UG8703E-B-inside.indd 7
3/3/2010 3:03:57 PM
Summary of Contents for Hot Rod Calc
Page 1: ...Model 8703 ...
